Hello,
firts sorry for my poor english
I've installed linux mint as audiophile music system with mpd server and alsa playing through usb dacmagic plus with cantata.
The system worked fine for few days and now, I cannot say why (after an update?) the dacmagic plus is no more seen. I try lsusb and the dac don't appear. I have windows 10 booting with grub and the dac is always mounted: the system is ok with asio and foobar2000.
What can prevent linux mint to recognize dacmagic plus usb? (I have already check the usb1 and usb2 tuning on the dacmagic plus and the same result for the two, not seen by the system)
Thank you for your help!

I've just try the 4.10-38 Kernel and same result: the usb dacmagic plus is not see.
It's a fresh install and I never change the kernel. All I have done are automatic update give by Linux Mint.
I see there are many other kernel. I can try another one ...
Have a great day